Basically, the patches can cause issues with all of Intel's latest generations:
Intel confirmed that patches for the security flaws can cause higher-than-expected reboot rates in Ivy Bridge, Sandy Bridge, Skylake and Kaby Lake processors, said Navin Shenoy, general manager of the data center group, in a statement on Intel’s website.At the same time, Intel also disclosed internal benchmark figures that lay out the expected performance hit. The chip maker downplays the issue and says web servers can expect a slowdown of about 2 percent, while online transactions at a stock brokerage may show a 4 percent hit.
The Kaby Lake chips are the company’s most recent offering.
However, Intel acknowledges that certain use cases will get a much more severe performance hit. For servers that store large amounts of data and need to retrieve it quickly, the performance slowdown can be as high as 18 to 25 percent. That's an awful performance hit, not in the least because of all the effort Intel has been making recently to pump its big data efforts. Bundle that with unscheduled reboots and this is definitely a giant mess for Intel.